DE60335734D1 - STIFF CONTROLLER FOR AN AIR SPRING - Google Patents
STIFF CONTROLLER FOR AN AIR SPRINGInfo
- Publication number
- DE60335734D1 DE60335734D1 DE60335734T DE60335734T DE60335734D1 DE 60335734 D1 DE60335734 D1 DE 60335734D1 DE 60335734 T DE60335734 T DE 60335734T DE 60335734 T DE60335734 T DE 60335734T DE 60335734 D1 DE60335734 D1 DE 60335734D1
- Authority
- DE
- Germany
- Prior art keywords
- air
- wheels
- frame
- reservoir
- control valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/26—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs
- B60G11/27—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs wherein the fluid is a gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/26—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs
- B60G11/28—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/26—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs
- B60G11/30—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs having pressure fluid accumulator therefor, e.g. accumulator arranged in vehicle frame
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
- B60G17/0152—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the action on a particular type of suspension unit
- B60G17/0155—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the action on a particular type of suspension unit pneumatic unit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
- B60G17/016—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
- B60G17/0165—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input to an external condition, e.g. rough road surface, side wind
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
- B60G17/04—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics
- B60G17/052—Pneumatic spring characteristics
- B60G17/0521—Pneumatic spring characteristics the spring having a flexible wall
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2200/00—Indexing codes relating to suspension types
- B60G2200/30—Rigid axle suspensions
- B60G2200/31—Rigid axle suspensions with two trailing arms rigidly connected to the axle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2200/00—Indexing codes relating to suspension types
- B60G2200/30—Rigid axle suspensions
- B60G2200/34—Stabilising mechanisms, e.g. for lateral stability
- B60G2200/341—Panhard rod
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/10—Type of spring
- B60G2202/15—Fluid spring
- B60G2202/152—Pneumatic spring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/10—Type of spring
- B60G2202/15—Fluid spring
- B60G2202/154—Fluid spring with an accumulator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/12—Mounting of springs or dampers
- B60G2204/126—Mounting of pneumatic springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/14—Mounting of suspension arms
- B60G2204/143—Mounting of suspension arms on the vehicle body or chassis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/14—Mounting of suspension arms
- B60G2204/148—Mounting of suspension arms on the unsprung part of the vehicle, e.g. wheel knuckle or rigid axle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/43—Fittings, brackets or knuckles
- B60G2204/4302—Fittings, brackets or knuckles for fixing suspension arm on the vehicle body or chassis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/43—Fittings, brackets or knuckles
- B60G2204/4306—Bracket or knuckle for rigid axles, e.g. for clamping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/44—Centering or positioning means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/45—Stops limiting travel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/40—Constructional features of dampers and/or springs
- B60G2206/42—Springs
- B60G2206/424—Plunger or top retainer construction for bellows or rolling lobe type air springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2300/00—Indexing codes relating to the type of vehicle
- B60G2300/02—Trucks; Load vehicles
- B60G2300/026—Heavy duty trucks
- B60G2300/0262—Multi-axle trucks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
- B60G2400/20—Speed
- B60G2400/204—Vehicle speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
- B60G2400/30—Propulsion unit conditions
- B60G2400/32—Torque on propulsion shaft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
- B60G2400/30—Propulsion unit conditions
- B60G2400/38—Speed of engine rotation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
- B60G2400/50—Pressure
- B60G2400/51—Pressure in suspension unit
- B60G2400/512—Pressure in suspension unit in spring
- B60G2400/5122—Fluid spring
- B60G2400/51222—Pneumatic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
- B60G2400/80—Exterior conditions
- B60G2400/82—Ground surface
- B60G2400/821—Uneven, rough road sensing affecting vehicle body vibration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2500/00—Indexing codes relating to the regulated action or device
- B60G2500/20—Spring action or springs
- B60G2500/204—Pressure regulating valves for air-springs
- B60G2500/2041—Pressure regulating valves for air-springs for variable volume air springs, e.g. using accumulators as expansion chambers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2500/00—Indexing codes relating to the regulated action or device
- B60G2500/30—Height or ground clearance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
- B60G2800/16—Running
- B60G2800/162—Reducing road induced vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
- B60G2800/21—Traction, slip, skid or slide control
- B60G2800/214—Traction, slip, skid or slide control by varying the load distribution
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
- B60G2800/90—System Controller type
- B60G2800/91—Suspension Control
- B60G2800/916—Body Vibration Control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
- B60G2800/90—System Controller type
- B60G2800/95—Automatic Traction or Slip Control [ATC]
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
- Fluid-Damping Devices (AREA)
- Vibration Prevention Devices (AREA)
- Control Of The Air-Fuel Ratio Of Carburetors (AREA)
Abstract
A method and apparatus for adaptively damping relative motion between the wheels and the frame of a heavy duty truck having a frame suspended on wheels by a suspension system. An air spring is disposed between the frame and at least one of the wheels having a primary reservoir for holding air and a piston adapted to act upon the air in the reservoir to compress the air and thereby provide support for the frame. An auxiliary reservoir holds air and can be placed in fluid communication with the primary reservoir to increase an effective volume of air upon which the piston acts. A control valve selectively places the auxiliary reservoir in communication with the primary reservoir based on vehicle operating parameters. The control valve can be actuated mechanically by forces acting on the wheels or by a controller that controls the valve based on wheel torque and road roughness.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/287,268 US6883810B2 (en) | 2002-11-04 | 2002-11-04 | Air spring stiffness controller |
PCT/US2003/029022 WO2004041563A1 (en) | 2002-11-04 | 2003-09-19 | Air spring stiffness controller |
Publications (1)
Publication Number | Publication Date |
---|---|
DE60335734D1 true DE60335734D1 (en) | 2011-02-24 |
Family
ID=32175652
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60335734T Expired - Lifetime DE60335734D1 (en) | 2002-11-04 | 2003-09-19 | STIFF CONTROLLER FOR AN AIR SPRING |
Country Status (6)
Country | Link |
---|---|
US (1) | US6883810B2 (en) |
EP (1) | EP1562765B1 (en) |
AT (1) | ATE495038T1 (en) |
AU (1) | AU2003272440A1 (en) |
DE (1) | DE60335734D1 (en) |
WO (1) | WO2004041563A1 (en) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1145157A4 (en) * | 1998-10-28 | 2007-10-17 | Yahoo Inc | A method of controlling an internet browser interface and a controllable browser interface |
US8464850B2 (en) * | 2006-11-16 | 2013-06-18 | Fox Factory, Inc. | Gas spring curve control in an adjustable-volume gas-pressurized device |
US10941828B2 (en) | 2002-06-25 | 2021-03-09 | Fox Factory, Inc. | Gas spring with travel control |
US7703585B2 (en) * | 2002-06-25 | 2010-04-27 | Fox Factory, Inc. | Integrated and self-contained suspension assembly having an on-the-fly adjustable air spring |
US20080296814A1 (en) | 2002-06-25 | 2008-12-04 | Joseph Franklin | Gas spring with travel control |
US7963509B2 (en) * | 2007-01-31 | 2011-06-21 | Fox Factory, Inc. | Travel control for a gas spring and gas spring having very short travel modes |
US7051851B2 (en) * | 2002-11-04 | 2006-05-30 | Volvo Trucks North America Inc. | Locking suspension system |
DE102007001342A1 (en) * | 2007-01-03 | 2008-07-17 | Siemens Ag | Regulation of an air spring |
DE102007028633A1 (en) * | 2007-06-21 | 2008-12-24 | Continental Aktiengesellschaft | Method for checking the function of motion sensors |
US8403115B2 (en) | 2008-01-11 | 2013-03-26 | Penske Racing Shocks | Dual rate gas spring shock absorber |
BR112012021954A2 (en) * | 2010-03-02 | 2016-05-31 | Int Truck Intellectual Prop Co | vehicle suspension system |
US9849745B2 (en) | 2013-04-03 | 2017-12-26 | Hendrickson Usa, L.L.C. | Vehicle suspension system with reservoir for air spring damping |
US9139061B2 (en) | 2013-04-03 | 2015-09-22 | Watson & Chalin Manufacturing, Inc. | Vehicle suspension system with reservoir for air spring damping |
CN104309437B (en) * | 2014-10-23 | 2017-05-31 | 山东理工大学 | The method for designing of vehicle air suspension non-linear rigidity real-time optimistic control |
EP3383681B1 (en) | 2015-12-01 | 2021-01-06 | Hendrickson USA, L.L.C. | Damping air spring with staged openings |
EP3548318B1 (en) | 2016-11-29 | 2020-10-21 | Volvo Truck Corporation | A method for controlling wheel axle suspension of a vehicle |
US20180345979A1 (en) * | 2017-05-31 | 2018-12-06 | GM Global Technology Operations LLC | Road roughness classification |
IT201700105749A1 (en) * | 2017-09-21 | 2019-03-21 | Fad Assali S P A | SUSPENSION FOR AGRICULTURAL TRAILERS |
Family Cites Families (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2901241A (en) * | 1956-07-10 | 1959-08-25 | Gen Motors Corp | Control device |
US3955590A (en) | 1974-11-05 | 1976-05-11 | Midland-Ross Corporation | Regulator for vehicle leveling systems |
US4030738A (en) | 1976-07-19 | 1977-06-21 | Willetts Elwood H | Tandem axle vehicle suspension system |
US4206934A (en) * | 1978-08-11 | 1980-06-10 | Grumman Flexible Corporation | Control valve mechanism for an air spring vehicle suspension |
JPS59106308A (en) * | 1982-12-07 | 1984-06-20 | Isuzu Motors Ltd | Air spring type suspension |
JPS59186713A (en) | 1983-03-18 | 1984-10-23 | Mazda Motor Corp | Suspension for automobile |
US4580806A (en) | 1984-04-20 | 1986-04-08 | Tartan Transportation Systems, Inc. | Pneumatic suspension system |
IT1178992B (en) * | 1984-06-27 | 1987-09-16 | Fiat Auto Spa | VARIABLE STRENGTH PNEUMATIC SPRING PARTICULARLY FOR VEHICLE SUSPENSIONS |
DE3434659A1 (en) | 1984-09-21 | 1986-04-03 | Fa. Carl Freudenberg, 6940 Weinheim | AIR SPRING |
US4697796A (en) * | 1984-10-20 | 1987-10-06 | Tokico Ltd. | Suspension device |
JPH07115572B2 (en) | 1985-01-16 | 1995-12-13 | トヨタ自動車株式会社 | Rear wheel suspension controller |
EP0217360B1 (en) | 1985-10-01 | 1990-01-31 | Toyota Jidosha Kabushiki Kaisha | Suspension control system |
GB2205285B (en) | 1987-04-24 | 1991-05-08 | Fuji Heavy Ind Ltd | Active suspension system of vehicle |
GB8814761D0 (en) * | 1988-06-22 | 1988-07-27 | French M J | Variable suspension spring |
US5060959A (en) | 1988-10-05 | 1991-10-29 | Ford Motor Company | Electrically powered active suspension for a vehicle |
US5255935A (en) * | 1990-03-09 | 1993-10-26 | Nippondenso Co., Ltd. | Air suspension system |
US5226675A (en) | 1991-05-31 | 1993-07-13 | Trw Inc. | Fifth wheel suspension |
JPH05238233A (en) * | 1992-03-02 | 1993-09-17 | Toyota Motor Corp | Control device for suspension |
GB9213268D0 (en) | 1992-06-23 | 1992-08-05 | Rover Group | A suspension system for a vehicle |
FR2697473B1 (en) * | 1992-10-30 | 1995-01-20 | Peugeot | Suspension device, in particular for a rear wheel of a motor vehicle and shock absorber used in such a device. |
US5465209A (en) | 1994-06-10 | 1995-11-07 | General Motors Corporation | Vehicle level control system |
US5603387A (en) | 1995-09-06 | 1997-02-18 | Applied Power, Inc. | Active vehicle suspension system |
US5727588A (en) | 1996-03-18 | 1998-03-17 | Lin; Arther | Depressurizing connector |
GB9611119D0 (en) | 1996-05-29 | 1996-07-31 | Rover Group | Motor vehicle suspension system |
US5681357A (en) | 1996-09-23 | 1997-10-28 | Motorola, Inc. | Gel electrolyte bonded rechargeable electrochemical cell and method of making same |
SE513416C2 (en) * | 1997-12-18 | 2000-09-11 | Volvo Lastvagnar Ab | Procedure for raising and lowering a vehicle chassis |
US6276710B1 (en) | 2000-04-19 | 2001-08-21 | Inernational Truck And Engine Corporation | Articulating air spring suspension for tandem axle |
US6698730B2 (en) * | 2001-10-04 | 2004-03-02 | Bfs Diversified Products, Llc | Dual rate air spring |
-
2002
- 2002-11-04 US US10/287,268 patent/US6883810B2/en not_active Expired - Fee Related
-
2003
- 2003-09-19 AU AU2003272440A patent/AU2003272440A1/en not_active Abandoned
- 2003-09-19 EP EP03754620A patent/EP1562765B1/en not_active Expired - Lifetime
- 2003-09-19 AT AT03754620T patent/ATE495038T1/en not_active IP Right Cessation
- 2003-09-19 WO PCT/US2003/029022 patent/WO2004041563A1/en not_active Application Discontinuation
- 2003-09-19 DE DE60335734T patent/DE60335734D1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1562765A1 (en) | 2005-08-17 |
WO2004041563A1 (en) | 2004-05-21 |
US6883810B2 (en) | 2005-04-26 |
EP1562765A4 (en) | 2008-04-23 |
US20040084858A1 (en) | 2004-05-06 |
ATE495038T1 (en) | 2011-01-15 |
EP1562765B1 (en) | 2011-01-12 |
AU2003272440A1 (en) | 2004-06-07 |
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